1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (C) 2021, Intel Corporation. */
3
4 #ifndef _IIDC_H_
5 #define _IIDC_H_
6
7 #include <linux/auxiliary_bus.h>
8 #include <linux/dcbnl.h>
9 #include <linux/device.h>
10 #include <linux/if_ether.h>
11 #include <linux/kernel.h>
12 #include <linux/netdevice.h>
13
14 enum iidc_event_type {
15 IIDC_EVENT_BEFORE_MTU_CHANGE,
16 IIDC_EVENT_AFTER_MTU_CHANGE,
17 IIDC_EVENT_BEFORE_TC_CHANGE,
18 IIDC_EVENT_AFTER_TC_CHANGE,
19 IIDC_EVENT_CRIT_ERR,
20 IIDC_EVENT_NBITS /* must be last */
21 };
22
23 enum iidc_reset_type {
24 IIDC_PFR,
25 IIDC_CORER,
26 IIDC_GLOBR,
27 };
28
29 enum iidc_rdma_protocol {
30 IIDC_RDMA_PROTOCOL_IWARP = BIT(0),
31 IIDC_RDMA_PROTOCOL_ROCEV2 = BIT(1),
32 };
33
34 #define IIDC_MAX_USER_PRIORITY 8
35 #define IIDC_MAX_DSCP_MAPPING 64
36 #define IIDC_DSCP_PFC_MODE 0x1
37
38 /* Struct to hold per RDMA Qset info */
39 struct iidc_rdma_qset_params {
40 /* Qset TEID returned to the RDMA driver in
41 * ice_add_rdma_qset and used by RDMA driver
42 * for calls to ice_del_rdma_qset
43 */
44 u32 teid; /* Qset TEID */
45 u16 qs_handle; /* RDMA driver provides this */
46 u16 vport_id; /* VSI index */
47 u8 tc; /* TC branch the Qset should belong to */
48 };
49
50 struct iidc_qos_info {
51 u64 tc_ctx;
52 u8 rel_bw;
53 u8 prio_type;
54 u8 egress_virt_up;
55 u8 ingress_virt_up;
56 };
57
58 /* Struct to pass QoS info */
59 struct iidc_qos_params {
60 struct iidc_qos_info tc_info[IEEE_8021QAZ_MAX_TCS];
61 u8 up2tc[IIDC_MAX_USER_PRIORITY];
62 u8 vport_relative_bw;
63 u8 vport_priority_type;
64 u8 num_tc;
65 u8 pfc_mode;
66 u8 dscp_map[IIDC_MAX_DSCP_MAPPING];
67 };
68
69 struct iidc_event {
70 DECLARE_BITMAP(type, IIDC_EVENT_NBITS);
71 u32 reg;
72 };
73
74 struct ice_pf;
75
76 int ice_add_rdma_qset(struct ice_pf *pf, struct iidc_rdma_qset_params *qset);
77 int ice_del_rdma_qset(struct ice_pf *pf, struct iidc_rdma_qset_params *qset);
78 int ice_rdma_request_reset(struct ice_pf *pf, enum iidc_reset_type reset_type);
79 int ice_rdma_update_vsi_filter(struct ice_pf *pf, u16 vsi_id, bool enable);
80 void ice_get_qos_params(struct ice_pf *pf, struct iidc_qos_params *qos);
81
82 /* Structure representing auxiliary driver tailored information about the core
83 * PCI dev, each auxiliary driver using the IIDC interface will have an
84 * instance of this struct dedicated to it.
85 */
86
87 struct iidc_auxiliary_dev {
88 struct auxiliary_device adev;
89 struct ice_pf *pf;
90 };
91
92 /* structure representing the auxiliary driver. This struct is to be
93 * allocated and populated by the auxiliary driver's owner. The core PCI
94 * driver will access these ops by performing a container_of on the
95 * auxiliary_device->dev.driver.
96 */
97 struct iidc_auxiliary_drv {
98 struct auxiliary_driver adrv;
99 /* This event_handler is meant to be a blocking call. For instance,
100 * when a BEFORE_MTU_CHANGE event comes in, the event_handler will not
101 * return until the auxiliary driver is ready for the MTU change to
102 * happen.
103 */
104 void (*event_handler)(struct ice_pf *pf, struct iidc_event *event);
105 };
106
107 #endif /* _IIDC_H_*/
108
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